Agc Inc.

Satoshi Kanasugi

Makoto Fujii

Masao Ozeki

Takanori Fukushi

Satoshi Takeda

Shusaku Akiba

Satoshi Ogami

Toru Ikeda

Shunji Wachi

Maya Hatano

Suguru Murayama

Kenichi Masuda

Kazuhiko Yamanaka

Madoka Ono

Shingo Endo

Shosuke Kimura

Naofumi Aoyama

Naoki Hashitani

An antiglare transparent substrate includes a transparent substrate which includes a chemically strengthened glass and has a first main surface and a second main surface. The first main surface includes: a first smooth region having an arithmetic average roughness Ra of 0.05 nm or more and 2 nm or less; and a first rough region having an arithmetic average roughness Ra larger than the arithmetic average roughness Ra of the first smooth region. The second main surface includes, in at least a part of a region facing the first smooth region, a second smooth region having an arithmetic average roughness Ra of 0.05 nm or more and 2 nm or less.

Antiglare transparent substrate and display device provided with same

A sensor module includes: a base member; at least one of a single or a plurality of sensors and vibrators arranged on the base member; and a protective member constituted of at least one flat surface or a curved surface, provided so as to cover the at least one of the sensors and the vibrators. A part or whole of the protective member is formed of a strengthened glass and the strengthened glass is a chemically strengthened glass or a physically strengthened glass.

Sensor module and protective glass

A 3D cover glass, having a polygonal shape in a plan view which corner part may comprise a rounded portion, and containing a central part being flat plane, and curved parts each with a three-dimensional curved surface having a curvature radius of 100 mm or less on peripheries of at least two of the sides of the polygonal shape, wherein the 3D cover glass shows the maximum value of retardation per 1 mm thickness being 16 nm/mm or less when measured by irradiating a light having a wavelength of 543 nm onto the central part orthogonally.

3D cover glass, mold for molding same, and method for manufacturing 3D cover glass

A glass for chemical strengthening has a Young's modulus E of 70 GPa or more. The glass satisfies X+X+Xbeing 1760 or less. Here, Xis a numerical value equivalent to a value [unit: kPa/&#xb0; C.] obtained by multiplying the Young's modulus E by an average coefficient &#x3b1; of thermal expansion at 50&#xb0; C. to 350&#xb0; C., Xis a numeral value equivalent to a value of a temperature Tf [unit: &#xb0; C.] at which a viscosity of the glass reaches 100 MPa&#xb7;s, and Xis a numerical value equivalent to a value of a difference [unit: 10Pa&#xb7;s] between the viscosity (100 MPa&#xb7;s) at the Tf and a viscosity &#x3b7;at a temperature 10&#xb0; C. higher than the Tf.

Glass for chemical strengthening, chemically strengthened glass and method for manufacturing chemically strengthened glass

A glass article including a first main surface, a second main surface, and an end face, in which: the glass article includes an antiglare layer on the first main surface side; the antiglare layer has a glass transition point Tg of equal to or less than a glass transition point Tgof the glass article at a center portion in a cross section along a thickness direction; and the first main surface has a protrusion diameter y (&#x3bc;m) that satisfies the relation (1) with respect to a 60&#xb0; specular gloss (gloss value) x (%) of the first main surface, y&#x3e;&#x2212;0.0245x+3.65 (1).

Glass article

A method for manufacturing a bent substrate, which forms a bent part in at least a part of a substrate, in which the substrate includes a second region and a first region, the method for manufacturing including: supporting the first region of the substrate on a substrate support surface of a support member including a mold surface having a same curved surface shape as that of the bent part and the substrate support surface that supports the first region, in a state of facing the second region of the substrate to the mold surface; heating the second region of the substrate to soften the second region of the substrate by the heating; placing the second region along the mold surface of the support member by an own weight of the second region; and transferring the curved surface shape of the mold surface to the second region by an external force.

Method for manufacturing bent substrate and bent substrate

A method for producing a glass article from a glass member including a glass substrate including a first main surface, a second main surface and an end face, and an irregular layer formed in at least one of main surfaces, includes forming an irregular layer having a glass transition point Tg which is equal to or lower than a glass transition point in a central part of the glass member in a thickness-direction sectional view and performing a heat treatment on the glass member so as to have an equilibrium viscosity in the central part of the glass member in thickness-direction sectional view of 10Pa&#xb7;s or lower.

Method for producing glass article, and glass article

The present invention relates to a mold including a master mold having a first region master mold molding surface having a shape corresponding to a first region of a molded body, and a second region master mold molding surface having a shape corresponding to a second region of the molded body, and in which the master mold includes: an inner mold having the first region master mold molding surface; an outer mold having an accommodating concave portion capable of accommodating the inner mold therein and the second region master mold molding surface on at least a part of an outer edge of the accommodating concave portion; and a buffer material provided between the inner mold and a bottom surface of the accommodating concave portion, the buffer material being pressed and deformed with relative movement of the inner mold and the outer mold.

Mold, molding apparatus, production method of molded body, and molded body

A glass plate, curved around a first axis, has a first surface being concave and a second surface being convex. In a cross sectional view of a plane perpendicular to the first axis, both end portions of the second surface are chemically strengthened. Compressive stress produced by ion exchange in the both end portions of the second surface is larger than that of the first surface. An X axis includes a line segment connecting one end point and a point, most distant from the one end point, on the cross section of the second surface. A Y axis passes a center point of the line segment, and positive direction is from a first surface toward a second surface. A second-order coefficient of a quadratic curve that approximates second-order differential values of a locus of a partial shape in a positive Y value region in the cross section is negative.

Glass plate and formation method thereof

A method for producing a bent glass article includes a heat treatment step of heat-treating a bent glass. The bent glass includes a first main stir-face, a second main surface and an end face. In the heat treatment step, the bent glass is supported by a support jig with one of the main surfaces facing downward. The support jig supports at least a part of one of the main surfaces or the end face in a higher position than the lowest position of one of the main surfaces.

Method for producing bent glass article, and bent glass article

Provided is a molding die for 3D cover glass containing a pair of a convex mold and a concave mold each having a flat press surface A and a press surface B, in which the closest distance D between the press surfaces A of the convex mold and the concave mold during press-molding and the closest distance D1 between the press surfaces B of the convex mold and the concave mold during press-molding satisfy a predetermined conditions with respect to the plate thickness of a 3D cover glass as a final product.

A plate-like glass includes a chemically strengthened glass having a first surface, a second surface facing the first surface, and an end surface connecting the first surface and second surface. When a tangential direction from an arbitrary point on the first surface is assumed to be an X-axis, a direction orthogonal to the X-axis is assumed to be a Y-axis, and a direction orthogonal to the X-axis and the Y-axis is assumed to be a Z-axis, the X-axis is a direction in which a first curvature radius Rin cross-section of the first surface in an XZ plane passing the X-axis and Z-axis is minimum. The first surface has a curvature part in which the surface is bent in the X-axis direction on the first surface and the first curvature radius Ris within a specific range.

Curved surface cover glass, method for manufacturing same, and in-vehicle display member

A method for manufacturing a formed glass includes using a heating apparatus. The heating apparatus includes a heating element and a heat reservoir having a transmittance of 50% or more in a wavelength of 0.5 &#x3bc;m to 2.5 &#x3bc;m. The heat reservoir is arranged between the heating element and a glass substrate as an object to be heated. The glass substrate is heated with the heating element, and the glass substrate is formed into a desired shape.

Growing community of inventors

Tokyo, Japan

Satoshi Kanasugi